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John L. Warren III

John knows how to help whistleblowers fight for what’s right. He has clerked in state and federal (two levels, no less) court and spent his private practice career working alongside White House appointed U.S. Attorneys. He knows how to work with the government on whistleblower cases, and he’s got a formidable track record of experience and significant recoveries.1

“I have witnessed the devastating effect that government fraud has, not only on taxpayers as a whole, but on individuals. The government does not have the resources or access to discover most of the fraud that occurs across our country, so it is up to brave individuals to blow the whistle on government fraud. And I want to help them.”

Lessons From the Top

John Warren understands the value of having a good mentor. He’s had several. He clerked for the Hon. John W. Kittredge of the Supreme Court of South Carolina for two years, for the Hon. Donald C. Coggins, Jr. of the U.S. District Court for the District of South Carolina for two and a half years, and for the Hon. A. Marvin Quattlebaum, Jr. of the U.S. Court of Appeals for the Fourth Circuit for a year. In private practice, John has worked with Bill Nettles and John Simmons, both former U.S. Attorneys for the District of South Carolina.

But he also knows that the mentor-mentee relationship is a two-way street, so he strove to be always prepared, always detailed, always willing to go the extra mile to fight for what’s right. He proved himself to be an out-of-the-box thinker who seeks creative legal solutions for complex issues. He honed his research and writing skills knowing that first impressions matter – especially when presenting a whistleblower claim to the government.

Why Whistleblower Cases?

After concluding his final clerkship, John has practiced almost exclusively in federal court handling whistleblower cases. He loves the complexity of these cases and is drawn to their unique challenges. And he also enjoys working with the individuals who bring forth these whistleblower claims because they share his indignation when others attempt to defraud the government for personal gain. An early case that really made an impact on John was on behalf of a military veteran who’d had his GI Bill funds stolen by a barber school in exchange for training and coursework that never materialized. Imagine his outrage! John did. And he channels it into his work every day.

“I Like to Get to Know My Clients.”

John recognizes that many whistleblowers are in a stressful situation, especially if they’re reporting their employer. He sees how alienating it can be for his clients to interact with their co-workers on a day-to-day basis, knowing that they are working to expose their and/or their employers’ fraudulent practices. So, he takes care to walk them through the potential scenarios they may encounter and helps them with the day-to-day struggles involved in their cases. He builds relationships with them so that they know they have someone on their side that they can trust. “I want my clients to know that I am always available to answer questions and will always try to outwork opposing counsel.”

Committed to the Carolinas

John grew up in Lexington, South Carolina and has spent his entire life in the Carolinas. He attended the University of South Carolina for his undergraduate education and graduated with honors with a B.A. in political science from its Honors College in 2009. Throughout college, he worked diligently as a legal assistant and runner for a local law firm and decided to delay law school and work there full time for a year. That year provided invaluable preparation for Elon University School of Law, and John graduated cum laude in 2013, after serving on the school’s Moot Court Board and Law Review. After graduation from Elon, John’s legal career was off and running.

John currently resides in Columbia, South Carolina with his wife and two black labs. Avid music fans, the couple enjoys traveling across the Southeast attending concerts and music festivals.

Licensed In

South Carolina


Elon University School of Law

Greensboro, NC
2013 J.D., cum laude

Elon Law Review – Member, 2011-2103; Editorial Board, 2012-2013
Elon Moot Court Board
Order of Barristers
Strongest Performance Award: Civil Procedure I, Legal Writing II, Evidence

University of South Carolina

Columbia, SC
2009 B.A. in Political Science, with Honors from the SC Honors College

Admitted to Practice

U.S. District Court for the District of South Carolina

U.S. Court of Appeals for the Fourth Circuit


South Carolina Association of Criminal Defense Lawyers


Chief Justice’s Commission on the Profession, Subcommittee to Revise the South Carolina Rules of Criminal Procedure, 2019-Present

Adjunct Professor and Director of Moot Court Program, University of South Carolina School of Law, 2021-Present

South Carolina Commission on Judicial Conduct, 2016-2017


United States Court of Appeals for the Fourth Circuit (Hon. A. Marvin Quattlebaum, Jr.), 2020-2021

United States District Court for the District of South Carolina (Hon. Donald C. Coggins, Jr.), 2017-2020

Supreme Court of South Carolina (Hon. John W. Kittredge), 2013-2015


“Holding the Bench Accountable: Judges Qua Representatives,” 6 Washington University Jurisprudence Review 299, 2014

“Note, Tale of Two Andersons: Anderson v. South Carolina Election Commission and Anderson v. Celebrezze—An Examination of the Constitutionality of Section 8-13-1356 of the South Carolina Code of Laws Following the 2012 Primary Ballot Access Controversy,” 5 Elon Law Review 223, 2013

Contact the Carolina
Whistleblower Attorneys

If you’re wondering if it’s a good idea to speak with a whistleblower lawyer about what you know, let us set the record straight.

  • Corporate ethics hotlines can be risky and may lead to termination. If you’ve already done this, call us immediately.
  • Your coworkers could be aware of the fraud – or complicit in it – and you should not talk to them about it.
  • The first claim to be filed under the False Claims Act can proceed – if you’re not first, you’re at a serious disadvantage and may get nothing (another reason not to speak to your coworkers about it).
  • A confidential discussion costs you a few minutes, but could save you time, stress, and money.


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